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Note 15 – Common Stock (Tables) | 6 Months Ended
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Oct. 31, 2023
Equity [Abstract] |
Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
Description of Shares |  | Shares Issued
Shares outstanding as of April 30, 2022 |  |  | 53,748,735 |
Vesting of restricted stock to employees, net of shares withheld of 273,874 to pay taxes and 9,000 to repay a Note |  |  | 653,308 |
Vesting of restricted stock to Board of Directors |  |  | 116,507 |
Vesting of restricted stock to consultants |  |  | 9,683 |
Shares issued for services |  |  | 39,832 |
Shares outstanding as of April 30, 2023 |  |  | 54,568,065 |
Vesting of restricted stock to employees, net of shares withheld of 18,935 to pay taxes |  |  | 94,971 |
Vesting of restricted stock to Board of Directors |  |  | 113,530 |
Vesting of restricted stock to consultants |  |  | 1,761 |
Conversion of preferred stock |  |  | 818,334 |
Issuance of common stock through ATM facilities |  |  | 53,235 |
Shares outstanding as of October 31, 2023 |  |  | 55,649,896 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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